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Demonstrating Diamond Wire Cutting of the TFTR



   The Tokamak Fusion Test Reactor (TFTR) decommissioning project had radiological hazards along with the size of the Tokamak (100 cubic meters) which presented a unique and challenging task for dismantling. Plasma arc cutting was the current baseline technology for the dismantlement of fission reactors. That technology wass typically used because of its faster cutting times. Alternatively, an innovative approach for dismantlement of the TFTR was the use of diamond wire cutting technology. Improvements in diamond wire technology have allowed the cutting of carbon steel components such as pipe, plate, and tube bundles in heat exchangers.  Benefits of this technology include: significantly reduction in airborne contaminates, reduced personnel exposure, a reduced risk of spread of tritium contamination, and reduced overall costs as compared to using plasma arc cutting. 


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